A leaked memo has revealed Samsung's upgrade plans for the Galaxy S4 and Galaxy Note 3 (the latter was launched not too long ago). It says, the 2013 flagship Smartphone will get updated to KRT16 i.e. Android 4.4 KitKat in January 2014. The same applies to the Note 3. Also, Galaxy S3 and Galaxy Note 2 owners, here's a reason to stick to your device just a bit longer. Samsung is working on bringing KitKat to their 2012 flagships as well. However, the timeframe is shifted by one quarter, to March-April 2014. Nevertheless, something is better than nothing, and this is as good as it's gonna get.